linux-kernel - [PATCH v1 1/3] mm: simplify arch_make_folio

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240729183844.388481-2-david@redhat.com>
Date: Mon, 29 Jul 2024 20:38:42 +0200
From: David Hildenbrand <david@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: linux-mm@...ck.org,
	linux-s390@...r.kernel.org,
	kvm@...r.kernel.org,
	David Hildenbrand <david@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Matthew Wilcox <willy@...radead.org>,
	Heiko Carstens <hca@...ux.ibm.com>,
	Vasily Gorbik <gor@...ux.ibm.com>,
	Alexander Gordeev <agordeev@...ux.ibm.com>,
	Christian Borntraeger <borntraeger@...ux.ibm.com>,
	Sven Schnelle <svens@...ux.ibm.com>,
	Janosch Frank <frankja@...ux.ibm.com>,
	Claudio Imbrenda <imbrenda@...ux.ibm.com>
Subject: [PATCH v1 1/3] mm: simplify arch_make_folio_accessible()

Now that s390x implements HAVE_ARCH_MAKE_FOLIO_ACCESSIBLE, let's turn
generic arch_make_folio_accessible() into a NOP: there are no other
targets that implement HAVE_ARCH_MAKE_PAGE_ACCESSIBLE but not
HAVE_ARCH_MAKE_FOLIO_ACCESSIBLE.

Signed-off-by: David Hildenbrand <david@...hat.com>
---
 include/linux/mm.h | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 381750f41767a..bab689ec77f94 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2215,16 +2215,7 @@ static inline int arch_make_page_accessible(struct page *page)
 #ifndef HAVE_ARCH_MAKE_FOLIO_ACCESSIBLE
 static inline int arch_make_folio_accessible(struct folio *folio)
 {
-	int ret;
-	long i, nr = folio_nr_pages(folio);
-
-	for (i = 0; i < nr; i++) {
-		ret = arch_make_page_accessible(folio_page(folio, i));
-		if (ret)
-			break;
-	}
-
-	return ret;
+	return 0;
 }
 #endif
 
-- 
2.45.2